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s390/sclp: unify basic sclp access by exposing "struct sclp"

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Let's unify basic access to sclp fields by storing the data in an external
struct in asm/sclp.h.

The values can now directly be accessed by other components, so there is
no need for most accessor functions and external variables anymore.

The mtid, mtid_max and facility part will be cleaned up separately.

Acked-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Signed-off-by: David Hildenbrand <dahi@linux.vnet.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
This commit is contained in:
David Hildenbrand
2015-05-06 13:18:59 +02:00
committed by Martin Schwidefsky
parent 9747bc47b3
commit 37c5f6c86c
14 changed files with 79 additions and 143 deletions
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4
arch/s390/kernel/smp.c
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@@ -601,7 +601,7 @@ static void __init smp_store_cpu_states(struct sclp_cpu_info *info)
/* No previous system present, normal boot. */
return;
/* Set multi-threading state to the previous system. */
pcpu_set_smt(sclp_get_mtid_prev());
pcpu_set_smt(sclp.mtid_prev);
/* Collect CPU states. */
cpu = 0;
for (i = 0; i < info->configured; i++) {
@@ -883,7 +883,7 @@ void __init smp_fill_possible_mask(void)
unsigned int possible, sclp_max, cpu;
sclp_max = min(smp_max_threads, sclp_get_mtid_max() + 1);
sclp_max = sclp_get_max_cpu() * sclp_max ?: nr_cpu_ids;
sclp_max = sclp.max_cpu * sclp_max ?: nr_cpu_ids;
possible = setup_possible_cpus ?: nr_cpu_ids;
possible = min(possible, sclp_max);
for (cpu = 0; cpu < possible && cpu < nr_cpu_ids; cpu++)